Programmable metasurfaces enable fine‐grained real‐time modulation over
electromagnetic (EM) waves in a digital manner, which have gained remarkable attention in …

Vortex beam, manifesting the characteristic helical phase front and amplitude singularity,
carries inherent orbital angular momentum (OAM) and has received intensive research from …

Digital coding metasurfaces are an important research branch of metamaterials and
metasurfaces. The digital coding method replaces the equivalent medium theory to …

Programmable metasurface, or reconfigurable intelligent surface is one of the most
promising strategies to enhance communication and sensing capacities via arrays of …

A broadband low-profile high-gain folded transmitarray antenna (FTA) is proposed to
generate orbital angular momentum (OAM) with circular polarization. A chiral metasurface is …

The design and implementation of a wideband circularly polarized folded reflectarray
antenna (CPFRA) with a linearly polarized (LP) feed antenna is presented in this letter. The …

A reconfigurable folded transmitarray antenna (RFTA) with fully planar structure is presented
in this letter. It consists of an electronically reconfigurable metasurface and a polarization …

This letter presents a novel circular leaky-wave antenna (CLWA) on a half-mode inter-
digitated capacitor based corrugated substrate integrated waveguide (HM-IDC-CSIW) to …

Orbital angular momentum (OAM) generated by metasurface has recently drawn many
attentions. However, due to the hollow phenomenon in the direction of the OAM beam far …

The ability of the reflectarray antenna (RA) to perform orbital angular momentum (OAM)
beam‐steering with low divergence angles at the fifth generation (5G) millimetre‐wave …